如下所示：

# -*- coding: utf-8 -*-   from VideoCapture import Device import time import pygame from pygame.locals import *import sys  pygame.init()  size = width, height = 620, 485 print sizespeed = [2, 2] black = 0, 0, 0 if pygame.display.get_init(): print ("inited")else: print"notinit"pygame.display.set_caption('1111') screen = pygame.display.set_mode((600,500))  SLEEP_TIME_LONG = 0.0  cam = Device(devnum=0, showVideoWindow=0) print cam  filename = "test.jpg"while True:  for event in pygame.event.get():   if event.type== QUIT:    sys.exit()   elif event.type== KEYDOWN:    key = pygame.key.get_pressed()    if key[97]:     filename = "test" + int(time.time()//1).__str__()+".jpg"     print filename     cam.saveSnapshot(filename, timestamp=3, boldfont=1, quality=55)    elif event.type== MOUSEBUTTONDOWN:    pass   elif event.type== MOUSEMOTION:    pass   elif event.type== MOUSEBUTTONUP:    pass      #cam.getImage(0, 0, "bl")  cmd="shut" Image = pygame.image.load(filename) #screen.fill(0,0,200) screen.blit(Image, (0,0)) pygame.display.update()      time.sleep(SLEEP_TIME_LONG) 

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